| DBD coupled with MnOx/γ-Al2O3 catalysts for the degradation of chlorobenzene |
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| 引用本文： | 刘杨海超,连莉萍,赵玮璇,张仁熙,侯惠奇.DBD coupled with MnOx/γ-Al2O3 catalysts for the degradation of chlorobenzene[J].等离子体科学和技术,2020,22(3):34016-122. |
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| 作者姓名： | 刘杨海超 连莉萍 赵玮璇 张仁熙 侯惠奇 |
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| 作者单位： | Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention（LAP3）;National Engineering Laboratory for VOCs Pollution Control Material&Technology |
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| 基金项目： | National Natural Science Foundation of China(No.21577023);the Special Research Project on Causes and Control Technology of Air Pollution(Nos.2017YFC0212905);the Science and Technology Innovation Action Project Supported by the Science and Technology Commission of Shanghai Municipality(No.18DZ1202605). |
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| 摘 要： | This paper investigates the degradation of chlorobenzene by dielectric barrier discharge(DBD)coupled with MnOx/γ-Al2O3 catalysts.MnOx/γ-Al2O3 catalysts were prepared using the impregnation method and were characterized in detail by N2 adsorption/desorption,x-ray diffraction and x-ray photoelectron spectroscopy.Compared with the single DBD reactor,the coupled reactor has a better performance on the removal rate of chlorobenzene,the selectivity of COx,and the inhibition of ozone production,especially at low discharge voltages.The degradation rate of chlorobenzene and selectivity of COx can reach 96.3%and 53.0%,respectively,at the specific energy density of 1350 J l-1.Moreover,the ozone concentration produced by the discharge is significantly reduced because the MnOx/Al2O3 catalysts contribute to the decomposition of ozone to form oxygen atoms for the oxidation of chlorobenzene.In addition,based on analysis of the byproducts,the decomposition mechanism of chlorobenzene in the coupled reactor is also discussed.
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| 关 键 词： | PLASMA catalytsis system chlorinated VOCs MnOx/Al2O3 CATALYSTS |
| 收稿时间： | 2019-09-01 |
| 修稿时间： | 2020-01-07 |
DBD coupled with MnOx/γ-Al2O3 catalysts
for the degradation of chlorobenzene |
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| Yanghaichao LIU,Liping LIAN,Weixuan ZHAO,Renxi ZHANG,Huiqi HOU.DBD coupled with MnOx/γ-Al2O3 catalysts
for the degradation of chlorobenzene[J].Plasma Science & Technology,2020,22(3):34016-122. |
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| Authors: | Yanghaichao LIU Liping LIAN Weixuan ZHAO Renxi ZHANG Huiqi HOU |
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| Affiliation: | (Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention(LAP3),Institute of Environmental Science,Fudan University,Shanghai 200433,People’s Republic of China;National Engineering Laboratory for VOCs Pollution Control Material&Technology,University of Chinese Academy of Sciences,Beijing 100049,People’s Republic of China) |
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| Abstract: | This paper investigates the degradation of chlorobenzene by dielectric barrier discharge (DBD)
coupled with MnOx/γ-Al2O3 catalysts. MnOx/γ-Al2O3 catalysts were prepared using the
impregnation method and were characterized in detail by N2 adsorption/desorption, x-ray diffraction
and x-ray photoelectron spectroscopy. Compared with the single DBD reactor, the coupled reactor
has a better performance on the removal rate of chlorobenzene, the selectivity of COx, and the
inhibition of ozone production, especially at low discharge voltages. The degradation rate of
chlorobenzene and selectivity of COx can reach 96.3% and 53.0%, respectively, at the specific
energy density of 1350 J l–1. Moreover, the ozone concentration produced by the discharge is
significantly reduced because the MnOx/Al2O3 catalysts contribute to the decomposition of ozone to
form oxygen atoms for the oxidation of chlorobenzene. In addition, based on analysis of the
byproducts, the decomposition mechanism of chlorobenzene in the coupled reactor is also discussed. |
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| Keywords: | plasma catalytsis system chlorinated VOCs MnOx/Al2O3 catalysts |
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